amine peg thiol (mw 2000)

Amine-PEG-thiol (MW 2000) is a PEG-based PROTAC linker used in PROTAC synthesis [1].

Mal-PEG-NH2 TFA (MW 2000) is a linear heterobifunctional PEG product containing maleimide and NH2 groups. The maleimide group can react with thiol, SH, mercapto, or sulfhydryl groups, while the amine group can react with carboxylic acids or activated NHS esters.

H2N-PEG-SH (MW 2000) is a linear heterobifunctional polyethylene glycol derivative containing thiol and amine groups. It serves as a significant cross-linking or bioconjugation reagent with a PEG chain. The thiol (?SH) or mercapto group selectively reacts with maleimide, OPSS, vinyl sulfone, and transition metal surfaces (such as gold and silver).